Medicinal powder racking machine

Abstract

The invention provides a medicine powder racking machine, and relates to the field of medicine powder racking, the medicine powder racking machine comprises a bin barrel, the side wall of the bin barrel is connected with a controller, the lower end of the bin barrel is fixedly connected with a collecting box, the upper end of the bin barrel is fixedly connected with a bearing seat, and the top end of the bin barrel is connected with a motor gear box; and the output end of the motor gear box is fixedly connected with a stirring shaft. Related parts between the dustproof sealing ring and the bearing seat are ingeniously combined to form a specific channel, the sealing lip structure is utilized, effective sealing of the stirring shaft is effectively achieved, dust entering accidentally can be temporarily stored and automatically emptied, and the phenomenon that medicine powder overflows at the joint of the dustproof sealing ring and the stirring shaft is greatly avoided; negative pressure is generated in the vertical pipe through movement of the piston, air flow is guided to flow in order, dust accumulated in an annular cavity formed in the dustproof sealing ring can be automatically and rapidly conveyed into the collecting box to be collected, and the automation degree and the working efficiency of equipment are improved.

Description

Technical Field

[0001] The invention relates to the field of medicine powder packaging, in particular to a medicine powder packaging machine. Background Art

[0002] In the pharmaceutical industry, drug powder filling is a critical and delicate operation. With the continuous growth of pharmaceutical market demand and increasingly stringent requirements for drug quality control, the performance and reliability of drug powder filling machines are facing many challenges and higher expectations.

[0003] Traditional powder filling machines have defects in the sealing design of the stirring shaft and the sealing ring. Since the powder has the characteristics of fine particles and is easy to float, it is very easy for the powder to seep out from the connection between the stirring shaft and the sealing ring during the stirring process. This not only leads to the waste of powder, but also pollutes the working environment of the filling machine. More seriously, it may affect the purity and quality of the powder, posing a potential threat to the safety of the medicine. Moreover, once the powder overflows, the cleaning work is extremely cumbersome, which will reduce the operating efficiency of the equipment and increase the time cost of equipment downtime maintenance. In addition, during the operation of the powder filling machine, some powder dust is easily accumulated at the junction of the sealing ring and the stirring shaft inside the equipment, which is not conducive to the cleaning and sanitary maintenance of the equipment, and is easy to breed bacteria and other microorganisms. It is a great hidden danger for the cleanliness requirements of the pharmaceutical production environment.

[0004] Therefore, it is necessary to provide a new medicine powder packaging machine to solve the above-mentioned technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a medicine powder packaging machine.

[0006] A medicine powder dispensing machine provided by the present invention comprises: a bin, a controller is installed and connected on the side wall of the bin, a collecting box is fixedly connected at the lower end of the bin, a bearing seat is fixedly connected at the upper end of the bin, a motor gear box is installed and connected at the top end of the bin, and a stirring shaft is fixedly connected at the output end of the motor gear box; a sealing mechanism, the sealing mechanism comprises a built-in bearing, the built-in bearing is arranged inside the bearing seat, a dustproof sealing ring is arranged in the built-in bearing, sealing lips are arranged at both side openings of the dustproof sealing ring, and two convex strips are symmetrically arranged on the outer wall of the dustproof sealing ring. Two side grooves are symmetrically provided on the inner wall of the built-in bearing, a built-in annular cavity is provided on the inner wall of the dustproof sealing ring, two main air ports are symmetrically provided on the inner wall of the built-in annular cavity, two auxiliary air ports are symmetrically provided on the side wall of the built-in bearing, and two branch pipes are symmetrically provided on the seat wall of the bearing seat; an automatic cleaning mechanism, the automatic cleaning mechanism includes a back plate, the back plate is fixedly mounted on the side wall of the bin barrel, a vertical pipe is fixedly connected to the back plate, a negative pressure component is provided inside the vertical pipe, a driving component is provided between the vertical pipe and the back plate, and a one-way flow component is provided on the pipe walls at both ends of the vertical pipe.

[0007] Preferably, the negative pressure assembly includes two sliding rods, which are respectively slidably connected to the tube walls at both ends of the vertical tube. A piston is provided inside the vertical tube. The adjacent ends of the two sliding rods are connected to the piston, and the other ends of the two sliding rods are commonly fixedly connected to a bow plate.

[0008] Preferably, the one-way flow component includes a three-way pipe, which is composed of an inlet pipe and an outlet pipe. The inlet pipe is installed and connected with an air inlet valve, and the outlet pipe is installed and connected with an air outlet valve. One end of the inlet pipe is connected to the pipe wall of the vertical pipe, and the other end of the inlet pipe is installed and connected with a filter cap. The outlet pipe is connected to a branch pipe on the side wall of the bearing seat through the main air pipe.

[0009] Preferably, the driving assembly includes a driving shaft, two ends of the driving shaft are respectively rotatably connected to two ends of a back plate, a small motor is installed and connected to one end of the back plate, the output end of the small motor is fixedly connected to the upper end of the driving shaft, a rear plate is provided at the middle position of the bow plate, a threaded opening is provided on the rear plate, the driving shaft is a reciprocating screw, the rear plate is threadedly connected to the driving shaft, a resistance piece is installed and connected on the rear plate, small convex plates are provided at both ends of the rear plate, pressure sensors are installed and connected on the two small convex plates, and the resistance piece is provided between the two pressure sensors.

[0010] Preferably, a ventilation port is provided at the front end of the collecting box, a small filter is installed and connected to the ventilation port, an inlet is provided at the upper end of the collecting box, the inlet is connected to another branch pipe on the side wall of the bearing seat through a secondary air pipe, two partition plates are equidistantly fixedly connected inside the collecting box, a recovery chamber is provided between the two partition plates, and a processing chamber is provided on the outer sides of the two partition plates, side rods are slidably connected to the side walls of both sides of the collecting box, a filter plate is fixedly connected between the two side rods, two filter ports are provided on the filter plate, the other ends of the two side rods are commonly connected to a beam frame, a connecting plate is provided at the middle position of the beam frame, an electric cylinder is installed and connected to the upper end box wall of the collecting box, and the telescopic end of the electric cylinder is fixedly connected to the connecting plate.

[0011] Preferably, the two processing chambers are fixedly connected with a ring frame, the ring frame is provided with a plurality of short tubes, the plurality of short tubes are arranged in an equidistant ring, a hammer rod is slidably connected to the tube wall at one end of the plurality of short tubes, a hammer head is fixedly connected to one end of the plurality of hammer rods, a magnetic block is fixedly connected to the other end of the plurality of hammer rods, and a spring is sleeved and connected to the plurality of hammer rods.

[0012] Preferably, a connecting shaft is rotatably connected to the rear wall of the two processing chambers, a turning bar is provided on the rear side of the two ring frames, one end of the two connecting shafts is respectively fixedly connected to the two turning bars, and both ends of the two turning bars are installed and connected with embedded magnetic parts, and the multiple embedded magnetic parts have the same magnetic poles as the multiple magnetic blocks.

[0013] Preferably, a main bevel gear is fixedly connected to the lower end of the driving shaft, a gear shaft is provided at the lower end of the back plate, a secondary bevel gear is fixedly connected to the gear shaft, the main bevel gear and the secondary bevel gear are meshed with each other, two center gears are fixedly connected to the gear shaft, and matching gears are fixedly connected to the rear ends of the two connecting shafts, and the two matching gears are respectively connected to the two center gears through two chains.

[0014] Compared with the related art, the medicine powder packaging machine provided by the present invention has the following beneficial effects:

[0015] 1. The present invention forms a specific channel by ingeniously combining the relevant parts between the dustproof sealing ring and the bearing seat, and utilizes the sealing lip structure to effectively seal the stirring shaft, and can also temporarily store the dust that accidentally enters and automatically empty it, which greatly avoids the overflow of the powder at the connection between the dustproof sealing ring and the stirring shaft, and ensures the cleanliness of the powder packaging environment and the accurate packaging of the powder;

[0016] 2. The present invention drives the drive shaft to rotate through the output end of the small motor, drives the rear plate to move back and forth relatively, and one end of the two slide rods jointly drives the piston to move accordingly, so that negative pressure is generated in the vertical pipe and the airflow is guided to flow in an orderly manner, and the dust accumulated in the built-in annular cavity of the dustproof sealing ring can be automatically and quickly transported to the inside of the collection box for collection, reducing the tedious operation of manual dust cleaning and improving the automation degree and work efficiency of the equipment;

[0017] 3. The present invention uses the abutment on the rear plate to alternately move against the two pressure sensors, and uses the cooperative work of the abutment and the pressure sensor on the rear plate to cooperate with the controller to complete the precise control of the electric cylinder, so as to realize the automatic alternating switching of the two filter ports on the filter plate between the processing chamber and the recovery chamber, ensuring that there are suitable filter ports for filtering operations in different working stages, maintaining the stable operation of the equipment, extending the service life of the filter and improving the filtering effect;

[0018] 4. The present invention drives a series of gears and connecting shaft components to operate by rotating the driving shaft. On the one hand, it cleans the dust in the built-in annular cavity. On the other hand, it uses magnetic force to drive the magnetic block to drive the hammer rod and the hammer head to move, and knocks and cleans the filter port of the switched filter plate. Under the same power source, coordinated and efficient cleaning of multiple parts is achieved, saving energy and ensuring the cleanliness and good passability of key parts of the equipment, further improving the overall performance and reliability of the powder filling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a preferred embodiment provided by the present invention;

[0020] Figure 2 for Figure 1 The structural schematic diagram of the sealing mechanism shown;

[0021] Figure 3 for Figure 2 The schematic diagram of the internal structure of the dustproof sealing ring shown;

[0022] Figure 4 for Figure 1 The structural schematic diagram of the automatic cleaning mechanism shown;

[0023] Figure 5 for Figure 1 The structural schematic diagram of the collection box shown;

[0024] Figure 6 for Figure 5 The internal structure diagram of the collection box shown;

[0025] Figure 7 for Figure 6 The structural schematic diagram of the ring frame shown;

[0026] Figure 8 for Figure 7 Schematic diagram of the structure of the short tube shown.

[0027] Numbers in the figure: 1, bin; 11, collection box; 111, small filter; 112, partition plate; 2, controller; 3, bearing seat; 4, motor gear box; 41, stirring shaft; 5, built-in bearing; 51, dustproof seal ring; 52, sealing lip; 53, convex strip; 54, side groove; 55, built-in annular cavity; 56, main air port; 57, auxiliary air port; 58, branch pipe; 6, back plate; 61, vertical pipe; 62, slide rod; 63, piston; 64, bow plate; 65, three-way pipe; 66, intake valve; 67. Exhaust valve; 68. Filter cap; 7. Drive shaft; 71. Small motor; 72. Rear plate; 73. Counterpiece; 74. Pressure sensor; 75. Side rod; 76. Filter plate; 77. Beam frame; 78. Electric cylinder; 8. Ring frame; 81. Short tube; 82. Hammer rod; 83. Hammer head; 84. Magnetic block; 85. Spring; 86. Connecting shaft; 87. Turn bar; 88. Embedded magnetic part; 9. Main bevel gear; 91. Gear shaft; 92. Sub bevel gear; 93. Center gear; 94. Matching gear. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0029] Please refer to Figures 1 to 8 A medicine powder filling machine comprises: a bin 1, a controller 2 is installed and connected on the side wall of the bin 1, a collecting box 11 is fixedly connected at the lower end of the bin 1, a bearing seat 3 is fixedly connected at the upper end of the bin 1, a motor gear box 4 is installed and connected at the top of the bin 1, and a stirring shaft 41 is fixedly connected at the output end of the motor gear box 4; a sealing mechanism, the sealing mechanism comprises a built-in bearing 5, the built-in bearing 5 is arranged inside the bearing seat 3, a dustproof sealing ring 51 is arranged in the built-in bearing 5, sealing lips 52 are arranged at both sides of the ring of the dustproof sealing ring 51, two convex strips 53 are symmetrically arranged on the outer wall of the dustproof sealing ring 51, and the built-in shaft Two side grooves 54 are symmetrically provided on the inner wall of the bearing 5, a built-in annular cavity 55 is provided on the inner wall of the dustproof sealing ring 51, two main air ports 56 are symmetrically provided on the inner wall of the built-in annular cavity 55, two auxiliary air ports 57 are symmetrically provided on the side wall of the built-in bearing 5, and two branch pipes 58 are symmetrically provided on the seat wall of the bearing seat 3; an automatic cleaning mechanism, the automatic cleaning mechanism includes a back plate 6, the back plate 6 is fixedly mounted on the side wall of the bin barrel 1, a vertical pipe 61 is fixedly connected to the back plate 6, a negative pressure component is provided inside the vertical pipe 61, a driving component is provided between the vertical pipe 61 and the back plate 6, and a one-way flow component is provided on the pipe walls at both ends of the vertical pipe 61.

[0030] In the specific implementation process, Figure 1 and Figure 4As shown, the negative pressure assembly includes two slide rods 62, which are slidably connected to the tube walls at both ends of the vertical tube 61 respectively. A piston 63 is provided inside the vertical tube 61. The adjacent ends of the two slide rods 62 are connected to the piston 63, and the other ends of the two slide rods 62 are fixedly connected to a bow plate 64.

[0031] It should be noted that: the main air port 56 on the dustproof seal ring 51 and the auxiliary air port 57 on the built-in bearing 5 are aligned and combined with the branch pipe 58 on the bearing seat 3, so that a flow channel is formed in the built-in annular cavity 55 in the dustproof seal ring 51. The sealing lips 52 on both sides seal the stirring shaft 41, and the dust that accidentally enters can be temporarily stored in the built-in annular cavity 55, so as to facilitate the subsequent automatic emptying process;

[0032] One end of the two slide rods 62 jointly drives the piston 63 to move, and the negative pressure inside the vertical pipe 61 is used to make the outside air flow into a branch pipe 58 of the bearing seat 3, and then the airflow drives the dust in the built-in annular cavity 55 to be transported to the recovery cavity inside the collection box 11, so that the dust accumulated in the built-in annular cavity 55 can be quickly and automatically transported to the inside of the collection box 11 for collection.

[0033] refer to Figure 2 and Figure 4 As shown, the one-way flow component includes a three-way pipe 65, which is composed of an inlet pipe and an outlet pipe. An inlet valve 66 is installed and connected in the inlet pipe, and an outlet valve 67 is installed and connected in the outlet pipe. One end of the inlet pipe is connected to the pipe wall of the vertical pipe 61, and a filter cap 68 is installed and connected at the other end of the inlet pipe. The outlet pipe is connected to a branch pipe 58 on the side wall of the bearing seat 3 through the main air pipe.

[0034] It should be noted that the negative pressure inside the vertical pipe 61 causes the external air to flow in unidirectionally through the air inlet valve 66 in the three-way pipe 65, and then flow out unidirectionally alternately through the air outlet valves 67 in the two three-way pipes 65, ensuring that the airflow inside the vertical pipe 61 can be extracted and discharged unidirectionally.

[0035] refer to Figure 1 and Figure 4 As shown, the driving assembly includes a driving shaft 7, and the two ends of the driving shaft 7 are rotatably connected to the two ends of the back plate 6 respectively. A small motor 71 is installed and connected at one end of the back plate 6, and the output end of the small motor 71 is fixedly connected to the upper end of the driving shaft 7. A rear plate 72 is provided at the middle position of the bow plate 64, and a threaded opening is provided on the rear plate 72. The driving shaft 7 is a reciprocating screw. The rear plate 72 is threadedly connected to the driving shaft 7, and a resistance member 73 is installed and connected on the rear plate 72. Small convex plates are provided at both ends of the rear plate 72, and pressure sensors 74 are installed and connected on the two small convex plates. The resistance member 73 is provided between the two pressure sensors 74.

[0036] It should be noted that the abutment 73 on the rear plate 72 is moved alternately to abut against the two pressure sensors 74 , so as to cooperate with the controller 2 to automatically control the telescopic position of the electric cylinder 78 .

[0037] refer to Figure 1 and Figure 5 As shown, a ventilation port is provided at the front end position of the collecting box 11, and a small filter 111 is installed and connected at the ventilation port. An inlet is provided at the upper end position of the collecting box 11, and the inlet is connected to another branch pipe 58 on the side wall of the bearing seat 3 through a secondary air pipe. Two partition plates 112 are fixedly connected at equal distances inside the collecting box 11, a recovery chamber is provided between the two partition plates 112, and a processing chamber is provided on the outer sides of the two partition plates 112. Side rods 75 are slidably connected to the side walls of both sides of the collecting box 11, a filter plate 76 is fixedly connected between the two side rods 75, and two filter ports are provided on the filter plate 76. The other ends of the two side rods 75 are commonly connected to a beam frame 77, and a connecting plate is provided at the middle position of the beam frame 77. An electric cylinder 78 is installed and connected to the upper end box wall of the collecting box 11, and the telescopic end of the electric cylinder 78 is fixedly connected to the connecting plate.

[0038] It should be noted that: the telescopic position of the electric cylinder 78 is controlled so that its output end drives the beam frame 77 to move and change position accordingly. The beam frame 77 drives the two side rods 75 to slide relative to the two side box walls of the collection box 11, and the two side rods 75 are used to drive the filter plate 76 to move alternately, thereby realizing automatic switching of the two filter positions on the filter plate 76, so that the two filter ports can be alternately adjusted in the two processing chambers and the recovery chamber, ensuring that there are suitable filter ports for filtering operations in different working stages, maintaining stable operation of the equipment, extending the service life of the mesh surface and improving the filtering effect.

[0039] refer to Figure 7 and Figure 8 As shown, a ring frame 8 is fixedly connected in both processing chambers, and a plurality of short tubes 81 are arranged on the ring frame 8. The plurality of short tubes 81 are arranged in an equidistant ring shape, and a hammer rod 82 is slidably connected to the tube wall at one end of the plurality of short tubes 81, and a hammer head 83 is fixedly connected to one end of the plurality of hammer rods 82, and a magnetic block 84 is fixedly connected to the other end of the plurality of hammer rods 82, and a spring 85 is sleeved and connected to the plurality of hammer rods 82.

[0040] It should be noted that: the multiple magnetic blocks 84 drive the multiple hammer rods 82 to slide relative to the multiple short tubes 81, so that the multiple springs 85 are elastically deformed alternately, so that the hammer heads 83 at one end of the multiple hammer rods 82 move alternately to hammer the mesh surface at the front filter port, thereby utilizing the knocking force to assist in single-port cleaning of the switched filter plate 76, ensuring that the permeability of the filter plate 76 is always maintained in good condition, and at the same time, the powder and dust can be further collected.

[0041] refer to Figure 6As shown, a connecting shaft 86 is rotatably connected to the rear wall of the two processing chambers, and a turning bar 87 is provided on the rear side of the two ring frames 8. One end of the two connecting shafts 86 is fixedly connected to the two turning bars 87 respectively, and both ends of the two turning bars 87 are installed and connected with embedded magnetic parts 88, and the multiple embedded magnetic parts 88 have the same magnetic poles as the multiple magnetic blocks 84.

[0042] It should be noted that the magnetic force between the multiple embedded magnetic components 88 and the multiple magnetic blocks 84 can be used to drive the multiple magnetic blocks 84 to move alternately.

[0043] refer to Figure 4 and Figure 6 As shown, a main bevel gear 9 is fixedly connected to the lower end of the driving shaft 7, a gear shaft 91 is provided at the lower end of the back plate 6, a sub-bevel gear 92 is fixedly connected to the gear shaft 91, the main bevel gear 9 and the sub-bevel gear 92 are meshed with each other, two central gears 93 are fixedly connected to the gear shaft 91, and matching gears 94 are fixedly connected to the rear ends of the two connecting shafts 86, and the two matching gears 94 are respectively connected to the two central gears 93 through two chains.

[0044] It should be noted that: the lower end of the driving shaft 7 drives the main bevel gear 9 to rotate, drives the secondary bevel gear 92 to drive the gear shaft 91 to rotate, and at the same time drives the two center gears 93 to rotate, so that they respectively drive the two matching gears 94 to rotate, and the rotation of the two connecting shafts 86 drives the two rotating bars 87 to rotate, so that when the driving shaft 7 rotates to clean the built-in annular cavity 55, it can provide driving force to further clean the filter port in the processing cavity, which is very efficient and convenient.

[0045] The working principle of a medicine powder filling machine provided by the present invention is as follows: after controlling the alignment disk at the upper end of the stirring shaft 41 to align with the preset position, the main air port 56 on the dustproof sealing ring 51 and the auxiliary air port 57 on the built-in bearing 5 are aligned and combined with the branch pipe 58 on the bearing seat 3 at the same time, so that a flow channel is formed in the built-in annular cavity 55 in the dustproof sealing ring 51. While the sealing lips 52 on both sides seal the stirring shaft 41, dust that accidentally enters can be temporarily stored in the built-in annular cavity 55 for subsequent automatic emptying processing, thereby effectively preventing the medicine powder from overflowing through the connection between the dustproof sealing ring 51 and the stirring shaft 41.

[0046] The small motor 71 is controlled to work so that its output end drives the driving shaft 7 to rotate, driving the rear plate 72 to move back and forth relatively, driving the bow plate 64 and then driving the two sliding rods 62 to slide relative to the tube walls at both ends of the vertical tube 61, and one end of the two sliding rods 62 jointly drives the piston 63 to move accordingly, and the negative pressure inside the vertical tube 61 is used to make the external air flow in unidirectionally through the air inlet valve 66 in the three-way pipe 65, and then alternately flow out unidirectionally through the air outlet valves 67 in the two three-way pipes 65, so that the airflow can flow through the main air pipe to a branch pipe 58 of the bearing seat 3, and then use the airflow to drive the dust in the built-in annular cavity 55 to be transported to the recovery cavity inside the collection box 11, so that the dust accumulated in the built-in annular cavity 55 can be quickly and automatically transported to the inside of the collection box 11 for collection, which is very convenient and fast.

[0047] The abutment 73 on the rear plate 72 is moved alternately to abut against the two pressure sensors 74, and the controller 2 (existing technology) is used to control the telescopic position of the electric cylinder 78, so that its output end drives the beam frame 77 to move and change position accordingly. The beam frame 77 drives the two side rods 75 to slide relative to the two side walls of the collection box 11, and the two side rods 75 are used to drive the filter plate 76 to move alternately, thereby realizing automatic switching of the two filter ports on the filter plate 76, so that the two filter ports can be alternately adjusted in the two processing chambers and the recovery chamber.

[0048] The lower end of the driving shaft 7 drives the main bevel gear 9 to rotate, driving the secondary bevel gear 92 to drive the gear shaft 91 to rotate, and at the same time drives the two center gears 93 to rotate, so that they respectively drive the two matching gears 94 to rotate. The rotation of the two connecting shafts 86 drives the two rotating bars 87 to rotate, so that the embedded magnetic parts 88 at both ends of the two rotating bars 87 rotate in turn until they coincide with the multiple magnetic blocks 84. The magnetic force can be used to simultaneously push the multiple magnetic blocks 84 to move, so that while cleaning the built-in annular cavity 55, it can provide driving force to further clean the filter port in the processing cavity, which is very efficient and convenient.

[0049] The multiple magnetic blocks 84 drive the multiple hammer rods 82 to slide relative to the multiple short tubes 81, so that the multiple springs 85 are elastically deformed alternately, so that the hammer heads 83 at one end of the multiple hammer rods 82 move alternately to hammer the mesh surface at the front filter port, thereby utilizing the knocking force to assist in single-port cleaning of the switched filter plate 76, ensuring that the permeability of the filter plate 76 is always maintained in good condition, and at the same time, the powder and dust can be further collected.

[0050] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A medicine powder packaging machine, characterized in that: include: A bin barrel (1), a controller (2) being mounted on a side wall of the bin barrel (1), a collecting box (11) being fixedly connected at the lower end of the bin barrel (1), a bearing seat (3) being fixedly connected at the upper end of the bin barrel (1), a motor gear box (4) being mounted on the top end of the bin barrel (1), and a stirring shaft (41) being fixedly connected at the output end of the motor gear box (4); A sealing mechanism, wherein the sealing mechanism comprises a built-in bearing (5), the built-in bearing (5) is arranged inside a bearing seat (3), a dustproof sealing ring (51) is arranged in the built-in bearing (5), sealing lips (52) are arranged at both side openings of the dustproof sealing ring (51), two convex strips (53) are symmetrically arranged on the outer wall of the dustproof sealing ring (51), two side grooves (54) are symmetrically arranged on the inner wall of the built-in bearing (5), a built-in annular cavity (55) is arranged on the inner wall of the dustproof sealing ring (51), two main air ports (56) are symmetrically arranged on the inner wall of the built-in annular cavity (55), two auxiliary air ports (57) are symmetrically arranged on the side wall of the built-in bearing (5), and two branch pipes (58) are symmetrically arranged on the seat wall of the bearing seat (3); An automatic cleaning mechanism, the automatic cleaning mechanism comprising a back plate (6), the back plate (6) being fixedly mounted on the side wall of a bin barrel (1), a vertical pipe (61) being fixedly connected to the back plate (6), a negative pressure component being arranged inside the vertical pipe (61), a driving component being arranged between the vertical pipe (61) and the back plate (6), and one-way flow components being arranged on the tube walls at both ends of the vertical pipe (61).

2. A medicine powder dispensing machine according to claim 1, characterized in that: The negative pressure assembly comprises two sliding rods (62), the two sliding rods (62) are respectively slidably connected to the tube walls at both ends of the vertical tube (61), a piston (63) is provided inside the vertical tube (61), the adjacent ends of the two sliding rods (62) are connected to the piston (63), and the other ends of the two sliding rods (62) are fixedly connected to a bow plate (64).

3. A medicine powder packaging machine according to claim 1, characterized in that: The one-way flow component comprises a three-way pipe (65), the three-way pipe (65) is composed of an inlet pipe and an outlet pipe, the inlet pipe is connected to an inlet valve (66), the outlet pipe is connected to an outlet valve (67), one end of the inlet pipe is connected to the pipe wall of the vertical pipe (61), the other end of the inlet pipe is connected to a filter cap (68), and the outlet pipe is connected to a branch pipe (58) on the side wall of the bearing seat (3) through a main air pipe.

4. A medicine powder packaging machine according to claim 2, characterized in that: The driving assembly comprises a driving shaft (7), the two ends of the driving shaft (7) are respectively rotatably connected to the two ends of the back plate (6), one end of the back plate (6) is connected with a small motor (71), the output end of the small motor (71) is fixedly connected with the upper end of the driving shaft (7), a rear plate (72) is provided at the middle position of the bow plate (64), a threaded opening is provided on the rear plate (72), the driving shaft (7) is a reciprocating screw, the rear plate (72) is threadedly connected to the driving shaft (7), a resist (73) is installed and connected on the rear plate (72), small convex plates are provided at both ends of the rear plate (72), pressure sensors (74) are installed and connected on the two small convex plates, and the resist (73) is provided between the two pressure sensors (74).

5. A medicine powder dispensing machine according to claim 4, characterized in that: The front end of the collecting box (11) is provided with a ventilation port, a small filter (111) is installed and connected to the ventilation port, the upper end of the collecting box (11) is provided with an inlet, the inlet is connected to another branch pipe (58) on the side wall of the bearing seat (3) through a secondary air pipe, the interior of the collecting box (11) is equidistantly fixed with two partition plates (112), a recovery chamber is provided between the two partition plates (112), and the outer sides of the two partition plates (112) are provided with a processing chamber The side walls of both sides of the collection box (11) are slidably connected with side rods (75), a filter plate (76) is fixedly connected between the two side rods (75), and the filter plate (76) is provided with two filter ports. The other ends of the two side rods (75) are commonly connected with a beam frame (77), and a connecting plate is provided at the middle position of the beam frame (77). An electric cylinder (78) is installed and connected to the upper end box wall of the collection box (11), and the telescopic end of the electric cylinder (78) is fixedly connected to the connecting plate.

6. A medicine powder dispensing machine according to claim 5, characterized in that: A ring frame (8) is fixedly connected in the two processing chambers, and a plurality of short tubes (81) are arranged on the ring frame (8). The plurality of short tubes (81) are arranged in an equidistant ring shape. A hammer rod (82) is slidably connected to the tube wall at one end of the plurality of short tubes (81), a hammer head (83) is fixedly connected to one end of the plurality of hammer rods (82), a magnetic block (84) is fixedly connected to the other end of the plurality of hammer rods (82), and a spring (85) is sleeved and connected to the plurality of hammer rods (82).

7. A medicine powder dispensing machine according to claim 6, characterized in that: A connecting shaft (86) is rotatably connected to the rear wall of the two processing chambers, and a rotating bar (87) is provided on the rear side of the two ring frames (8). One end of the two connecting shafts (86) is fixedly connected to the two rotating bars (87) respectively, and both ends of the two rotating bars (87) are installed and connected with embedded magnetic parts (88), and the multiple embedded magnetic parts (88) have the same magnetic poles as the multiple magnetic blocks (84).

8. A medicine powder dispensing machine according to claim 7, characterized in that: A main bevel gear (9) is fixedly connected to the lower end of the drive shaft (7); a gear shaft (91) is provided at the lower end of the back plate (6); a secondary bevel gear (92) is fixedly connected to the gear shaft (91); the main bevel gear (9) and the secondary bevel gear (92) are meshed with each other; two central gears (93) are fixedly connected to the gear shaft (91); matching gears (94) are fixedly connected to the rear ends of the two connecting shafts (86); the two matching gears (94) are respectively connected to the two central gears (93) via two chains.

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